Reductive Ring‐Opening Reaction of 2,3‐Epoxy‐1,4‐butanediones with SbCl3‐Bu4NI in the Presence of Na2S2O3·5H2O
摘要:
1,4-Disubstituted 2,3 -epoxy-1,4-butanediones were converted to 1,4-disubstituted 2-hydroxy-1,4-butanediones with SbCl3-Bu4NI in the presence of Na(2)S(2)O(3)center dot 5H(2)O. The ring opening of terminal epoxides can also be accomplished to afford the corresponding haloalcohol with SbCl3 and tetrabutylammonium halides, Bu4NX (X = Cl, Br, I) under the same reaction conditions.
Reductive Ring‐Opening Reaction of 2,3‐Epoxy‐1,4‐butanediones with SbCl<sub>3</sub>‐Bu<sub>4</sub>NI in the Presence of Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub>·5H<sub>2</sub>O
作者:Shinsei Sayama
DOI:10.1080/00397910500180121
日期:2005.8.1
1,4-Disubstituted 2,3 -epoxy-1,4-butanediones were converted to 1,4-disubstituted 2-hydroxy-1,4-butanediones with SbCl3-Bu4NI in the presence of Na(2)S(2)O(3)center dot 5H(2)O. The ring opening of terminal epoxides can also be accomplished to afford the corresponding haloalcohol with SbCl3 and tetrabutylammonium halides, Bu4NX (X = Cl, Br, I) under the same reaction conditions.
Epoxidation of 2-Butene-1,4-diones with Hydrogen Peroxide in the Presence of a Catalytic Amount of Quaternary Ammonium Iodide
作者:Shinsei Sayama、Yutaka Inamura
DOI:10.1246/bcsj.64.1993
日期:1991.6
The epoxidation of 1,4-disubstituted 2-butene-1,4-diones with 30% aq H2O2 in the presence of a catalytic amount of quaternary ammonium iodide afforded 2,3-epoxy-1,4-butanediones in high yield.
在一定量的碘化季铵催化剂存在下,用 30% aq H2O2 对 1,4- 二取代的 2-丁烯-1,4-二酮进行环氧化反应,可以得到高产率的 2,3- 环氧-1,4-丁二酮。